using System;
using System.Collections.Generic;
using System.Text;
using OpenRa.FileFormats;
using System.Drawing;
using BluntDirectX.Direct3D;

namespace OpenRa.Game
{
	static class UnitSheetBuilder
	{
		static readonly Package unitsPackage = new Package( "../../../conquer.mix" );
		public static readonly List<SheetRectangle<Sheet>> McvSheet = new List<SheetRectangle<Sheet>>();

		public static void AddUnit( string name, GraphicsDevice device, Palette pal )
		{
			List<Sheet> sheets = new List<Sheet>();
			Size pageSize = new Size( 1024, 512 );

			Provider<Sheet> sheetProvider = delegate
			{
				Sheet sheet = new Sheet( new Bitmap( pageSize.Width, pageSize.Height ) );
				sheets.Add( sheet );
				return sheet;
			};

			TileSheetBuilder<Sheet> builder = new TileSheetBuilder<Sheet>( pageSize, sheetProvider );

			ShpReader reader = new ShpReader( unitsPackage.GetContent( name + ".shp" ) );
			foreach( ImageHeader h in reader )
			{
				Bitmap bitmap = BitmapBuilder.FromBytes( h.Image, reader.Width, reader.Height, pal );

				SheetRectangle<Sheet> rect = builder.AddImage( bitmap.Size );
				using( Graphics g = Graphics.FromImage( rect.sheet.bitmap ) )
					g.DrawImage( bitmap, rect.origin );

				McvSheet.Add( rect );
			}

			foreach( Sheet sheet in sheets )
				sheet.LoadTexture( device );
		}
	}
}